WO2016138673A1 - 显示面板及其制造方法 - Google Patents

显示面板及其制造方法 Download PDF

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Publication number
WO2016138673A1
WO2016138673A1 PCT/CN2015/073922 CN2015073922W WO2016138673A1 WO 2016138673 A1 WO2016138673 A1 WO 2016138673A1 CN 2015073922 W CN2015073922 W CN 2015073922W WO 2016138673 A1 WO2016138673 A1 WO 2016138673A1
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WO
WIPO (PCT)
Prior art keywords
partition
pretilt angle
degrees
depth
area
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2015/073922
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English (en)
French (fr)
Inventor
叶岩溪
赵阳
邱钟毅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TCL China Star Optoelectronics Technology Co Ltd
Original Assignee
Shenzhen China Star Optoelectronics Technology Co Ltd
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Filing date
Publication date
Application filed by Shenzhen China Star Optoelectronics Technology Co Ltd filed Critical Shenzhen China Star Optoelectronics Technology Co Ltd
Priority to US14/648,920 priority Critical patent/US9885919B2/en
Publication of WO2016138673A1 publication Critical patent/WO2016138673A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/133753—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers with different alignment orientations or pretilt angles on a same surface, e.g. for grey scale or improved viewing angle
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133514—Colour filters
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/133707—Structures for producing distorted electric fields, e.g. bumps, protrusions, recesses, slits in pixel electrodes
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1343—Electrodes
    • G02F1/13439—Electrodes characterised by their electrical, optical, physical properties; materials therefor; method of making
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/136286—Wiring, e.g. gate line, drain line
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/133753—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers with different alignment orientations or pretilt angles on a same surface, e.g. for grey scale or improved viewing angle
    • G02F1/133761—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers with different alignment orientations or pretilt angles on a same surface, e.g. for grey scale or improved viewing angle with different pretilt angles
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • G02F1/134345—Subdivided pixels, e.g. for grey scale or redundancy
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/12—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode
    • G02F2201/123—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode pixel

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a display panel and a method of fabricating the same.
  • Billboards are generally as high as they are, so for the lower perspective (Azimuth Angle 270°) has a higher requirement for Washout.
  • FIG. 1 in the first conventional display panel 101, the areas of the four partitions (1011, 1012, 1013, and 1014) of one sub-pixel are the same.
  • 2 is a simulation diagram obtained by performing gamma simulation on sub-pixels of the above-described conventional display panel 101, in which a gamma curve of four azimuth angles of the display panel (C1_0_60) at a large viewing angle of 60° , C1_90_60, C1_180_60, C1_270_60) are consistent, that is to say, the four azimuth angles of the display panel are the same in the case of the Washout at a large viewing angle.
  • the curves C1_0_60, C1_90_60, C1_180_60, and C1_270_60 respectively indicate the display panel in a direction corresponding to the first azimuth angle 0°, the second azimuth angle 90°, the third-dimensional position angle 180°, and the fourth azimuth angle 270°.
  • a 60 mm wide viewing angle Gamma curve of 101, the curve C1_0_0 represents a Gamma curve of the 0° viewing angle of the display panel 101 in a direction corresponding to the first azimuth angle of 0°.
  • FIG. 2 in another conventional display panel 301, the area of the upper half of one sub-pixel (3011, 3012) is smaller than the area of the lower half of the partition (3013, 3014).
  • 4 is a simulation diagram obtained by performing gamma simulation on sub-pixels of the above-described conventional display panel 301, wherein curves C2_0_60, C2_90_60, C2_180_60, and C2_270_60 respectively indicate a first azimuth angle of 0° and a second azimuth angle of 90 degrees, a gamma curve of a large viewing angle of 60° of the display panel 301 in a direction corresponding to a third-degree position angle of 180° and a fourth azimuth angle of 270°, and a curve C1_0_0 indicates a direction corresponding to the first azimuth angle of 0°.
  • the Gamma curve of the 0° viewing angle of the display panel 301 As can be seen from the figure, the gamma curve of the lower view is closer to the Gamma curve of the 0° view angle at the low gray level, and the Washout effect of the upper view is the worst.
  • the traditional large-size display panel cannot provide a user with a good display quality at a specific viewing angle.
  • An object of the present invention is to provide a display panel and a manufacturing method thereof, which can improve the brightness whitening phenomenon of a large-sized display panel under a viewing angle of a large viewing angle, thereby improving the viewing angle of a large-sized display panel at a large viewing angle.
  • the quality of the display is to provide a display panel and a manufacturing method thereof, which can improve the brightness whitening phenomenon of a large-sized display panel under a viewing angle of a large viewing angle, thereby improving the viewing angle of a large-sized display panel at a large viewing angle.
  • a display panel comprising: a color filter substrate; a liquid crystal layer; and a thin film transistor array substrate, the thin film transistor array substrate and the liquid crystal layer and the color filter substrate are superimposed and combined
  • the thin film transistor array substrate includes: at least two pixel units, at least two of the pixel units are arranged in an array, the pixel unit includes: a first partition, the first partition corresponding to The first liquid crystal molecule has a first pretilt angle; a second partition, the second liquid crystal molecule corresponding to the second partition has a second pretilt angle; and a third partition, the third liquid crystal molecule corresponding to the third partition Having a third pretilt angle; and a fourth partition, the fourth liquid crystal molecule corresponding to the fourth partition has a fourth pretilt angle; wherein the first partition and the second partition are aligned in a first direction, The third partition and the fourth partition are arranged in a reverse direction of the first direction, and the first partition and the fourth partition are arranged in a second direction, and the second partition
  • an area of the first partition is equal to an area of the second partition
  • an area of the third partition is equal to an area of the fourth partition
  • the third pretilt angle is smaller than the first a pretilt angle and the second pretilt angle
  • the fourth pretilt angle being smaller than the first pretilt angle and the second pretilt angle
  • the first pretilt angle being in a range of 86 degrees to 89 degrees
  • the third pretilt angle is in the range of 81 degrees to 85 degrees.
  • the area of the second partition is smaller than the area of the first partition
  • the area of the third partition is larger than the area of the second partition
  • the area of the fourth partition is larger than the third An area of the partition
  • the third pretilt angle is smaller than the first pretilt angle, the second pretilt angle, and the fourth pretilt angle
  • the first pretilt angle is in a range of 86 degrees to 89 degrees
  • the third pretilt angle is in the range of 81 degrees to 85 degrees.
  • a display panel comprising: a color filter substrate; a liquid crystal layer; and a thin film transistor array substrate, the thin film transistor array substrate and the liquid crystal layer and the color filter substrate are superimposed and combined
  • the thin film transistor array substrate includes: at least two pixel units, at least two of the pixel units are arranged in an array, the pixel unit includes: a first partition, the first partition corresponding to The first liquid crystal molecule has a first pretilt angle; a second partition, the second liquid crystal molecule corresponding to the second partition has a second pretilt angle; and a third partition, the third liquid crystal molecule corresponding to the third partition Having a third pretilt angle; and a fourth partition, the fourth liquid crystal molecule corresponding to the fourth partition has a fourth pretilt angle; wherein the first partition and the second partition are aligned in a first direction, The third partition and the fourth partition are arranged in a reverse direction of the first direction, and the first partition and the fourth partition are arranged in a second direction, and the second partition
  • the first pixel electrode trench in the first partition has a first depth, the first depth corresponds to the first pretilt angle; and the second pixel electrode trench in the second partition
  • the groove has a second depth, the second depth corresponding to the second pretilt angle;
  • the third pixel electrode trench in the third partition has a third depth, the third depth and the third pretilt angle Corresponding;
  • the fourth pixel electrode trench in the fourth partition has a fourth depth, and the fourth depth corresponds to the fourth pretilt angle.
  • an area of the first partition is equal to an area of the second partition
  • an area of the third partition is equal to an area of the fourth partition
  • the third pretilt angle is smaller than the first a pretilt angle and the second pretilt angle
  • the fourth pretilt angle being smaller than the first pretilt angle and the second pretilt angle.
  • the first pretilt angle is in a range of 86 degrees to 89 degrees; and the third pretilt angle is in a range of 81 degrees to 85 degrees.
  • the first pretilt angle and the second pretilt angle are both in a range of 87 degrees to 89 degrees, and the third pretilt angle and the fourth pretilt angle are both 82 degrees to 84 degrees. In the range.
  • the first pretilt angle and the second pretilt angle are both 88 degrees, and the third pretilt angle and the fourth pretilt angle are both 83 degrees.
  • the area of the second partition is smaller than the area of the first partition
  • the area of the third partition is larger than the area of the second partition
  • the area of the fourth partition is larger than the third The area of the partition
  • the third pretilt angle is less than the first pretilt angle, the second pretilt angle, and the fourth pretilt angle.
  • the first pretilt angle is in a range of 86 degrees to 89 degrees; and the third pretilt angle is in a range of 81 degrees to 85 degrees.
  • the first pretilt angle, the second pretilt angle, and the fourth pretilt angle are both in a range of 87 degrees to 89 degrees, and the third pretilt angle is in an angle of 82 degrees to 84 degrees.
  • the first pretilt angle, the second pretilt angle, and the fourth pretilt angle are both 88 degrees, and the third pretilt angle is 83 degrees.
  • a method of manufacturing the above display panel comprising the steps of: A, setting the first partition, the second partition, and the third in each of the pixel units of the thin film transistor array substrate a partition and the fourth partition such that a first pixel electrode trench in the first partition has a first depth, and a second pixel electrode trench in the second partition has a second depth, the third partition The third pixel electrode trench has a third depth, and the fourth pixel electrode trench in the fourth partition has a fourth depth; B.
  • the liquid crystal layer between the thin film transistor array substrate and the color filter substrate such that the first liquid crystal molecules at the first partition and the second portion Two liquid crystal molecules, a third liquid crystal molecule at the third partition, and a fourth liquid crystal molecule at the fourth partition have the first pretilt angle, the second pretilt angle, the third pretilt angle, and The fourth pretilt
  • the first depth corresponds to the first pretilt angle
  • the second depth corresponds to the second pretilt angle
  • the third depth corresponds to the third pretilt angle
  • the fourth depth Corresponding to the fourth pretilt angle.
  • an area of the first partition is equal to an area of the second partition, an area of the third partition is equal to an area of the fourth partition; and the third pretilt angle is smaller than The first pretilt angle and the second pretilt angle, the fourth pretilt angle is smaller than the first pretilt angle and the second pretilt angle;
  • the step A includes the following steps: a1, at the first a pixel electrode is disposed on the partition, the second partition, the third partition, and the fourth partition such that a first depth of the first pixel electrode trench in the first partition, in the second partition a second depth of the second pixel electrode trench, a third depth of the third pixel electrode trench in the third partition, and a fourth depth of the fourth pixel electrode trench in the fourth partition are equal; a2 And etching the pixel electrode in the first partition and the second partition such that the first depth and the second depth are both smaller than the third depth.
  • the first pretilt angle and the second pretilt angle are both in a range of 87 degrees to 89 degrees, and the third pretilt angle and the fourth pretilt angle are both 82 degrees. Up to 84 degrees.
  • the first pretilt angle and the second pretilt angle are both 88 degrees, and the third pretilt angle and the fourth pretilt angle are both 83 degrees.
  • the area of the second partition is smaller than the area of the first partition
  • the area of the third partition is larger than the area of the second partition
  • the area of the fourth partition is larger than An area of the third partition
  • the third pretilt angle is smaller than the first pretilt angle, the second pretilt angle, and the fourth pretilt angle
  • the step A includes the following steps: a3, at the first a pixel electrode is disposed on the partition, the second partition, the third partition, and the fourth partition such that a first depth of the first pixel electrode trench in the first partition, in the second partition a second depth of the second pixel electrode trench, a third depth of the third pixel electrode trench in the third partition, and a fourth depth of the fourth pixel electrode trench in the fourth partition are equal; a4 Etching the pixel electrodes in the first partition, the second partition, and the fourth partition such that the first depth, the second depth, and the fourth depth are both smaller than Said third depth.
  • the first pretilt angle, the second pretilt angle, and the fourth pretilt angle are both in a range of 87 degrees to 89 degrees, and the third pretilt angle is 82 degrees to Within a range of 84 degrees.
  • the first pretilt angle, the second pretilt angle, and the fourth pretilt angle are both 88 degrees, and the third pretilt angle is 83 degrees.
  • the present invention is advantageous for improving the brightness whitening phenomenon of a large-sized display panel under a viewing angle of a large viewing angle, thereby improving the display quality of a large-sized display panel under a viewing angle of a large viewing angle.
  • FIG. 1 is a schematic view of a sub-pixel in a first conventional display panel
  • FIG. 2 is a simulation diagram obtained by performing gamma simulation on the sub-pixel shown in FIG. 1;
  • FIG. 3 is a schematic diagram of sub-pixels in a second conventional display panel
  • FIG. 4 is a simulation diagram obtained by performing gamma simulation on the sub-pixel shown in FIG. 3;
  • FIG. 5 is a schematic view showing a first embodiment of a thin film transistor array substrate in a display panel of the present invention
  • Figure 6 is a schematic view of the A-A' section of Figure 5;
  • FIGS. 5 and 6 are simulation diagrams obtained by performing gamma simulation on the sub-pixels shown in FIGS. 5 and 6;
  • Figure 8 is a schematic view of the comparison of the gamma curves of the upper and lower viewing angles of Figures 7 and 4;
  • Figure 9 is a schematic view showing the gamma curves of the left and right viewing angles of Figures 7 and 4;
  • FIG. 10 is a schematic view showing a second embodiment of a thin film transistor array substrate in a display panel of the present invention.
  • FIG. 11 is a simulation diagram obtained by performing gamma simulation on the sub-pixel shown in FIG. 10;
  • FIG. 12 is a flow chart showing a method of manufacturing a display panel of the present invention.
  • Figure 13 is a flow chart of the first embodiment of step 1201 of Figure 12;
  • step 14 is a flow chart of a second embodiment of step 1201 of FIG.
  • the display panel of the present invention may be a TFT-LCD (Thin Film Transistor Liquid) Crystal Display, thin film transistor liquid crystal display panel), OLED (Organic Light Emitting) Diode, organic light emitting diode display panel) and so on.
  • TFT-LCD Thin Film Transistor Liquid
  • OLED Organic Light Emitting
  • OLED Organic Light Emitting Diode
  • FIG. 5 is a schematic view of a first embodiment of a thin film transistor array substrate in a display panel of the present invention
  • FIG. 6 is a schematic view of a cross section taken along line A-A' of FIG.
  • the display panel includes a color filter substrate, a liquid crystal layer, and a thin film transistor array substrate, and the thin film transistor array substrate is superimposed and integrated with the liquid crystal layer and the color filter substrate.
  • the thin film transistor array substrate includes at least two pixel units 504, and at least two of the pixel units 504 are arranged in an array (two-dimensional array), and the pixel unit 504 includes a first partition 5041 and a second partition 5042. A third partition 5043 and a fourth partition 5044.
  • the thin film transistor array substrate further includes at least one data line 502 and at least one scan line (gate line) 501, and the data line 502 and the scan line 501 are electrically connected to the thin film transistor switch 503 of the pixel unit 504. connection.
  • the first partition 5041 and the second partition 5042 are arranged in a first direction 505, and the third partition 5043 and the fourth partition 5044 are arranged in a reverse direction of the first direction 505, the first partition 5041 and the fourth partition 5044 are arranged along a second direction 506, the second partition 5042 and the third partition 5043 are arranged along the second direction 506, the first direction 505 and the second direction 506 vertical.
  • the first liquid crystal molecules corresponding to the first partition 5041 have a first pretilt angle (Pretilt).
  • Pretilt The second liquid crystal molecules corresponding to the second partition 5042 have a second pretilt angle
  • the third liquid crystal molecules corresponding to the third partition 5043 have a third pretilt angle
  • the fourth partition 5044 corresponds to The fourth liquid crystal molecule has a fourth pretilt angle.
  • the first pixel electrode trench in the first partition 5041 has a first depth, the first depth corresponding to the first pretilt angle; and the second pixel electrode trench in the second partition 5042 has a second a depth h, the second depth h corresponding to the second pretilt angle; a third pixel electrode trench in the third partition 5043 having a third depth H, the third depth H and the third pre The tilt angle corresponds to; the fourth pixel electrode trench in the fourth partition 5044 has a fourth depth, and the fourth depth corresponds to the fourth pretilt angle.
  • the first pixel electrode trench having the first depth is for causing the first liquid crystal molecule to have the first pretilt angle
  • the second pixel electrode trench having the second depth h For causing the second liquid crystal molecules to have the second pretilt angle
  • the third pixel electrode trench having the third depth H for causing the third liquid crystal molecules to have the third pretilt angle
  • the fourth pixel electrode trench having the fourth depth is for causing the fourth liquid crystal molecule to have the fourth pretilt angle.
  • the trenches of the pixel electrode 602 (the first pixel electrode trench, the second pixel electrode trench, the third pixel electrode trench, and the fourth pixel electrode trench) The greater the depth, the smaller the pretilt angle of the corresponding liquid crystal molecules (the first pretilt angle, the second pretilt angle, the third pretilt angle, and the fourth pretilt angle).
  • the area of the first partition 5041 is equal to the area of the second partition 5042
  • the area of the third partition 5043 is equal to the area of the fourth partition 5044.
  • the area of the first partition 5041, the area of the second partition 5042, the area of the third partition 5043, and the area of the fourth partition 5044 are all equal.
  • the third pretilt angle is smaller than the first pretilt angle and the second pretilt angle
  • the fourth pretilt angle is smaller than the first pretilt angle and the second pretilt angle.
  • the first pretilt angle is equal to the second pretilt angle
  • the third pretilt angle is equal to the fourth pretilt angle
  • the third pretilt angle is smaller than the first pretilt angle.
  • the first depth and the second depth h are both smaller than the third depth H and the fourth depth.
  • the first pretilt angle and the second pretilt angle are both in a range of 86 degrees to 89 degrees, and the third pretilt angle and the fourth pretilt angle are both in a range of 81 degrees to 85 degrees.
  • first pretilt angle and the second pretilt angle are both in a range of 87 degrees to 89 degrees
  • third pretilt angle and the fourth pretilt angle are both in a range of 82 degrees to 84 degrees. .
  • the first pretilt angle and the second pretilt angle are both 88 degrees, and the third pretilt angle and the fourth pretilt angle are both 83 degrees.
  • the above technical solution is advantageous for improving the brightness whitening phenomenon of the large-sized display panel under the viewing angle of a large viewing angle, thereby improving the display quality of the large-sized display panel under the viewing angle of a large viewing angle.
  • the curves C3_0_60, C3_90_60, C3_180_60, and C3_270_60 respectively indicate the direction corresponding to the first azimuth angle 0°, the second azimuth angle 90°, the third-order position angle 180°, and the fourth azimuth angle 270°, respectively.
  • a Gamma curve of a 60° viewing angle of the display panel, and a curve C3_0_0 represents a Gamma curve of a 0° viewing angle of the display panel of the present embodiment in a direction corresponding to the first azimuth angle of 0°. It can be clearly seen from Fig. 7 that the Washout effect of the lower view is the best, and the Washout effect of the upper view is the worst.
  • the comparison result shown in FIG. 8 can be obtained.
  • the lower viewing angle of the display panel of the present embodiment is In low grayscale (Gray Level) is still close to the standard Gamma 2.2 curve in high grayscale, so the Washout effect is better.
  • the comparison result shown in FIG. 9 can be obtained.
  • the left and right viewing angles of the display panel of the present embodiment are The low gray level is also significantly closer to Gamma than the second conventional display panel described above. 2.2 curve, so the effect of Washout is better.
  • FIG. 10 is a schematic diagram of a second embodiment of a thin film transistor array substrate in a display panel of the present invention. This embodiment is similar to the first embodiment described above, except that:
  • the area of the second partition 5042 is smaller than the area of the first partition 5041, the area of the third partition 5043 is larger than the area of the second partition 5042, and the area of the fourth partition 5044 is larger than the third partition.
  • the area of 5043 For example, an area of the first partition 5041 occupies 24 of an area of the pixel electrode (including the first pixel electrode, the second pixel electrode, the third pixel electrode, and the fourth pixel electrode) 602 %, the area of the second partition 5042 occupies 16% of the area of the pixel electrode 602, the area of the third pixel electrode occupies 24% of the area of the pixel electrode 602, and the area of the fourth pixel electrode It accounts for 36% of the area of the pixel electrode 602.
  • the third pretilt angle is smaller than the first pretilt angle, the second pretilt angle, and the fourth pretilt angle.
  • the first pretilt angle is equal to the second pretilt angle and the fourth pretilt angle
  • the third pretilt angle is smaller than the second pretilt angle.
  • the first depth, the second depth h, and the fourth depth are both smaller than the third depth H.
  • the first pretilt angle, the second pretilt angle, and the fourth pretilt angle are all in a range of 86 degrees to 89 degrees, and the third pretilt angle is in a range of 81 degrees to 85 degrees.
  • first pretilt angle, the second pretilt angle and the fourth pretilt angle are both in a range of 87 degrees to 89 degrees, and the third pretilt angle is in a range of 82 degrees to 84 degrees.
  • the first pretilt angle, the second pretilt angle and the fourth pretilt angle are both 88 degrees, and the third pretilt angle is 83 degrees.
  • the above technical solution is advantageous for improving the display quality of the large-sized display panel under the viewing angles of the left and right viewing angles or the lower viewing angle.
  • the curves C4_0_60, C4_90_60, C4_180_60, and C4_270_60 respectively indicate the directions corresponding to the first azimuth angle 0°, the second azimuth angle 90°, the third-order position angle 180°, and the fourth azimuth angle 270°, respectively.
  • a Gamma curve of a 60° viewing angle of the display panel, and a curve C4_0_0 represents a Gamma curve of a 0° viewing angle of the display panel of the present embodiment in a direction corresponding to the first azimuth angle of 0°.
  • Figure 11 shows that the bottom view Washout works best, the upper view Washout is the worst, and the left and right views increase with grayscale, and the Washout effect alternates.
  • FIG. 12 is a flowchart of a method of manufacturing a display panel of the present invention.
  • a (step 1201), the first partition 5041, the second partition 5042, the third partition 5043, and the fourth partition 5044 are disposed in each of the pixel units 504 of the thin film transistor array substrate.
  • the first pixel electrode trench in the first partition 5041 has a first depth
  • the second pixel electrode trench in the second partition 5042 has a second depth h
  • the third of the third partitions 5043 The three pixel electrode trench has a third depth H
  • the fourth pixel electrode trench in the fourth partition 5044 has a fourth depth.
  • step 1202 the thin film transistor array substrate and the color filter substrate are superimposed and integrated.
  • the liquid crystal layer is disposed between the thin film transistor array substrate and the color filter substrate, so that the first liquid crystal molecules at the first partition 5041 and the second partition 5042
  • the second liquid crystal molecules at the third liquid crystal molecules at the third partition 5043, and the fourth liquid crystal molecules at the fourth partition 5044 have the first pretilt angle, the second pretilt angle, and the a third pretilt angle and the fourth pretilt angle.
  • the first depth corresponds to the first pretilt angle
  • the second depth h corresponds to the second pretilt angle
  • the third depth H corresponds to the third pretilt angle
  • the fourth The depth corresponds to the fourth pretilt angle.
  • the first pixel electrode trench having the first depth is for causing the first liquid crystal molecule to have the first pretilt angle
  • the second pixel electrode trench having the second depth h is used for Having the second liquid crystal molecule have the second pretilt angle
  • the third pixel electrode trench having the third depth H is used to cause the third liquid crystal molecule to have the third pretilt angle
  • the fourth pixel electrode trench of the fourth depth is used to cause the fourth liquid crystal molecule to have the fourth pretilt angle.
  • the trenches of the pixel electrode 602 (the first pixel electrode trench, the second pixel electrode trench, the third pixel electrode trench, and the fourth pixel electrode trench) The greater the depth, the smaller the pretilt angle of the corresponding liquid crystal molecules (the first pretilt angle, the second pretilt angle, the third pretilt angle, and the fourth pretilt angle).
  • Figure 13 is a flow chart of the first embodiment of step 1201 of Figure 12.
  • the area of the first partition 5041 is equal to the area of the second partition 5042, and the area of the third partition 5043 is equal to the area of the fourth partition 5044.
  • the third pretilt angle is smaller than the first pretilt angle and the second pretilt angle
  • the fourth pretilt angle is smaller than the first pretilt angle and the second pretilt angle.
  • the first pretilt angle is equal to the second pretilt angle
  • the third pretilt angle is equal to the fourth pretilt angle
  • the third pretilt angle is smaller than the first pretilt angle.
  • the step A (the step 1201) includes the following steps:
  • the pixel electrode 602 is disposed on the first partition 5041, the second partition 5042, the third partition 5043, and the fourth partition 5044, for example, by sputtering
  • the pixel electrode 602 is formed on the array substrate 601 such that a first depth of the first pixel electrode trench in the first partition 5041 and a second depth h of the second pixel electrode trench in the second partition 5042
  • the third depth H of the third pixel electrode trench in the third partition 5043 and the fourth depth of the fourth pixel electrode trench in the fourth partition 5044 are equal.
  • step 12012 etching the pixel electrode 602 in the first partition 5041 and the second partition 5042 so that the first depth and the second depth h are both smaller than the third Depth H, for example, removing at least a portion of the pixel electrode 602 in the first partition 5041 and the second partition 5042 by a reticle process.
  • first pretilt angle and the second pretilt angle are both in the range of 86 degrees to 89 degrees.
  • the third pretilt angle and the fourth pretilt angle are both in the range of 81 degrees to 85 degrees.
  • first pretilt angle and the second pretilt angle are both in a range of 87 degrees to 89 degrees
  • third pretilt angle and the fourth pretilt angle are both in a range of 82 degrees to 84 degrees. .
  • the first pretilt angle and the second pretilt angle are both 88 degrees, and the third pretilt angle and the fourth pretilt angle are both 83 degrees.
  • the above technical solution is advantageous for improving the brightness whitening phenomenon of the large-sized display panel under the viewing angle of a large viewing angle, thereby improving the display quality of the large-sized display panel under the viewing angle of a large viewing angle.
  • Figure 14 is a flow chart of a second embodiment of step 1201 of Figure 12. This embodiment is similar to the first embodiment described above, except that:
  • the area of the second partition 5042 is smaller than the area of the first partition 5041, the area of the third partition 5043 is larger than the area of the second partition 5042, and the area of the fourth partition 5044 is larger than the third partition.
  • the area of 5043 For example, an area of the first partition 5041 occupies 24 of an area of the pixel electrode (including the first pixel electrode, the second pixel electrode, the third pixel electrode, and the fourth pixel electrode) 602 %, the area of the second partition 5042 occupies 16% of the area of the pixel electrode 602, the area of the third pixel electrode occupies 24% of the area of the pixel electrode 602, and the area of the fourth pixel electrode It accounts for 36% of the area of the pixel electrode 602.
  • the third pretilt angle is smaller than the first pretilt angle, the second pretilt angle, and the fourth pretilt angle.
  • the first pretilt angle is equal to the second pretilt angle and the fourth pretilt angle
  • the third pretilt angle is smaller than the second pretilt angle.
  • the step A (the step 1201) includes the following steps:
  • the pixel electrode 602 is disposed on the first partition 5041, the second partition 5042, the third partition 5043, and the fourth partition 5044, for example, by sputtering
  • the pixel electrode 602 is formed on the array substrate 601 such that a first depth of the first pixel electrode trench in the first partition 5041 and a second depth h of the second pixel electrode trench in the second partition 5042
  • the third depth H of the third pixel electrode trench in the third partition 5043 and the fourth depth of the fourth pixel electrode trench in the fourth partition 5044 are equal.
  • step 12014 etching the pixel electrode 602 in the first partition 5041, the second partition 5042, and the fourth partition 5044 to make the first depth and the second depth h and the fourth depth are both smaller than the third depth H, for example, removing the pixel electrode 602 in the first partition 5041, the second partition 5042, and the fourth partition 5044 by a mask process At least part of it.
  • the first pretilt angle, the second pretilt angle, and the fourth pretilt angle are all in a range of 86 degrees to 89 degrees.
  • the third pretilt angle is in the range of 81 degrees to 85 degrees.
  • first pretilt angle, the second pretilt angle and the fourth pretilt angle are both in a range of 87 degrees to 89 degrees, and the third pretilt angle is in a range of 82 degrees to 84 degrees.
  • the first pretilt angle, the second pretilt angle and the fourth pretilt angle are both 88 degrees, and the third pretilt angle is 83 degrees.
  • the above technical solution is advantageous for improving the display quality of the large-sized display panel under the viewing angles of the left and right viewing angles or the lower viewing angle.

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Abstract

一种显示面板及其制造方法。所述显示面板包括彩色滤光片基板、液晶层、薄膜晶体管阵列基板，所述薄膜晶体管阵列基板中的像素单元（504）包括第一分区（5041）、第二分区（5042）、第三分区（5043）、第四分区（5044），所述第一分区（5041）、第二分区（5042）、第三分区（5043）、第四分区（5044）所对应的液晶分子分别具有第一、第二、第三、第四预倾角。能够提高显示面板在大视角的观察角度下的显示质量。

Description

显示面板及其制造方法 技术领域
本发明涉及显示技术领域，特别涉及一种显示面板及其制造方法。
 背景技术
传统的大尺寸显示面板在大视角下一般具有比较严重的亮度泛白现象（Washout）。
传统的大尺寸显示面板主要应用于家庭客厅的电视机和公共场所的广告牌中。
在家庭客厅的场景下，用户会在家庭客厅会来回走动，所以对于左右视角（Azimuth Angle 0°/180°）的Washout有较高的要求。
广告牌一般至于高处，所以对于下视角（Azimuth Angle 270°）的Washout有较高的要求。
如图1所示，在第一种传统的显示面板101中，一个子像素的四个分区（Domain）（1011、1012、1013和1014）的面积是一样的。图2是对上述传统的显示面板101的子像素进行伽马（Gamma）模拟所得出的模拟图，其中，在60°的大视角下，所述显示面板的四个方位角的Gamma曲线（C1_0_60、C1_90_60、C1_180_60、C1_270_60）一致，也就是说所述显示面板的四个方位角在大视角下的Washout情况是一样的。其中，曲线C1_0_60、C1_90_60、C1_180_60、C1_270_60分别表示在第一方位角0°、第二方位角90°、第三方位角180°和第四方位角270°所对应的方向下，所述显示面板101的60°的大视角的Gamma曲线，曲线C1_0_0表示在第一方位角0°所对应的方向下，所述显示面板101的0°视角的Gamma曲线。
如图2所示，在另一种传统的显示面板301中，一个子像素的上半部分的分区（3011、3012）的面积比下半部分的分区（3013、3014）的面积小。图4是对上述传统的显示面板301的子像素进行伽马模拟所得出的模拟图，其中，曲线C2_0_60、C2_90_60、C2_180_60、C2_270_60分别表示在第一方位角0°、第二方位角90°、第三方位角180°和第四方位角270°所对应的方向下，所述显示面板301的60°的大视角的Gamma曲线，曲线C1_0_0表示在第一方位角0°所对应的方向下，所述显示面板301的0°视角的Gamma曲线。从图中可以看出，下视角的伽马曲线在低灰阶下更靠近0°视角的Gamma曲线，而上视角的Washout效果最差。
综上，在特定视角下，传统的大尺寸显示面板无法为用户提供显示质量良好的画面。
故，有必要提出一种新的技术方案，以解决上述技术问题。
 技术问题
本发明的目的在于提供一种显示面板及其制造方法，其能有利于改善大尺寸显示面板在大视角的观察角度下的亮度泛白现象，从而提高大尺寸显示面板在大视角的观察角度下的显示质量。
 技术解决方案
一种显示面板，所述显示面板包括：一彩色滤光片基板；一液晶层；以及一薄膜晶体管阵列基板，所述薄膜晶体管阵列基板与所述液晶层和所述彩色滤光片基板叠加组合为一体，其中，所述薄膜晶体管阵列基板包括：至少两个像素单元，至少两所述像素单元以阵列的形式排列，所述像素单元包括：一第一分区，所述第一分区所对应的第一液晶分子具有第一预倾角；一第二分区，所述第二分区所对应的第二液晶分子具有第二预倾角；一第三分区，所述第三分区所对应的第三液晶分子具有第三预倾角；以及一第四分区，所述第四分区所对应的第四液晶分子具有第四预倾角；其中，所述第一分区与所述第二分区沿第一方向排列，所述第三分区与所述第四分区沿所述第一方向的反方向排列，所述第一分区与所述第四分区沿第二方向排列，所述第二分区与所述第三分区沿所述第二方向排列，所述第一方向与所述第二方向垂直；所述第一分区中的第一像素电极沟槽具有第一深度，所述第一深度与所述第一预倾角对应；所述第二分区中的第二像素电极沟槽具有第二深度，所述第二深度与所述第二预倾角对应；所述第三分区中的第三像素电极沟槽具有第三深度，所述第三深度与所述第三预倾角对应；所述第四分区中的第四像素电极沟槽具有第四深度，所述第四深度与所述第四预倾角对应；所述薄膜晶体管阵列基板还包括至少一数据线和至少一扫描线，所述数据线和所述扫描线均与所述像素单元的薄膜晶体管开关电性连接。
在上述显示面板中，所述第一分区的面积与所述第二分区的面积相等，所述第三分区的面积与所述第四分区的面积相等；所述第三预倾角小于所述第一预倾角和所述第二预倾角，所述第四预倾角小于所述第一预倾角和所述第二预倾角；所述第一预倾角处于86度至89度的范围内；所述第三预倾角处于81度至85度的范围内。
在上述显示面板中，所述第二分区的面积小于所述第一分区的面积，所述第三分区的面积大于所述第二分区的面积，所述第四分区的面积大于所述第三分区的面积；所述第三预倾角均小于所述第一预倾角、所述第二预倾角和所述第四预倾角；所述第一预倾角处于86度至89度的范围内；所述第三预倾角处于81度至85度的范围内。
一种显示面板，所述显示面板包括：一彩色滤光片基板；一液晶层；以及一薄膜晶体管阵列基板，所述薄膜晶体管阵列基板与所述液晶层和所述彩色滤光片基板叠加组合为一体，其中，所述薄膜晶体管阵列基板包括：至少两个像素单元，至少两所述像素单元以阵列的形式排列，所述像素单元包括：一第一分区，所述第一分区所对应的第一液晶分子具有第一预倾角；一第二分区，所述第二分区所对应的第二液晶分子具有第二预倾角；一第三分区，所述第三分区所对应的第三液晶分子具有第三预倾角；以及一第四分区，所述第四分区所对应的第四液晶分子具有第四预倾角；其中，所述第一分区与所述第二分区沿第一方向排列，所述第三分区与所述第四分区沿所述第一方向的反方向排列，所述第一分区与所述第四分区沿第二方向排列，所述第二分区与所述第三分区沿所述第二方向排列，所述第一方向与所述第二方向垂直。
在上述显示面板中，所述第一分区中的第一像素电极沟槽具有第一深度，所述第一深度与所述第一预倾角对应；所述第二分区中的第二像素电极沟槽具有第二深度，所述第二深度与所述第二预倾角对应；所述第三分区中的第三像素电极沟槽具有第三深度，所述第三深度与所述第三预倾角对应；所述第四分区中的第四像素电极沟槽具有第四深度，所述第四深度与所述第四预倾角对应。
在上述显示面板中，所述第一分区的面积与所述第二分区的面积相等，所述第三分区的面积与所述第四分区的面积相等；所述第三预倾角小于所述第一预倾角和所述第二预倾角，所述第四预倾角小于所述第一预倾角和所述第二预倾角。
在上述显示面板中，所述第一预倾角处于86度至89度的范围内；所述第三预倾角处于81度至85度的范围内。
在上述显示面板中，所述第一预倾角和所述第二预倾角均处于87度至89度的范围内，所述第三预倾角和所述第四预倾角均处于82度至84度的范围内。
在上述显示面板中，所述第一预倾角和所述第二预倾角均为88度，所述第三预倾角和所述第四预倾角均为83度。
在上述显示面板中，所述第二分区的面积小于所述第一分区的面积，所述第三分区的面积大于所述第二分区的面积，所述第四分区的面积大于所述第三分区的面积；所述第三预倾角小于所述第一预倾角、所述第二预倾角和所述第四预倾角。
在上述显示面板中，所述第一预倾角处于86度至89度的范围内；所述第三预倾角处于81度至85度的范围内。
在上述显示面板中，所述第一预倾角、所述第二预倾角和所述第四预倾角均处于87度至89度的范围内，所述第三预倾角处于82度至84度的范围内。
在上述显示面板中，所述第一预倾角、所述第二预倾角和所述第四预倾角均为88度，所述第三预倾角为83度。
一种上述显示面板的制造方法，所述方法包括以下步骤：A、在所述薄膜晶体管阵列基板的每一个所述像素单元中设置所述第一分区、所述第二分区、所述第三分区和所述第四分区，使得所述第一分区中的第一像素电极沟槽具有第一深度，所述第二分区中的第二像素电极沟槽具有第二深度，所述第三分区中的第三像素电极沟槽具有第三深度，所述第四分区中的第四像素电极沟槽具有第四深度；B、将所述薄膜晶体管阵列基板、所述彩色滤光片基板叠加组合为一体；C、在所述薄膜晶体管阵列基板和所述彩色滤光片基板之间设置所述液晶层，以使所述第一分区处的第一液晶分子、所述第二分区处的第二液晶分子、所述第三分区处的第三液晶分子、所述第四分区处的第四液晶分子分别具有所述第一预倾角、所述第二预倾角、所述第三预倾角和所述第四预倾角；其中，所述第一深度与所述第一预倾角对应，所述第二深度与所述第二预倾角对应，所述第三深度与所述第三预倾角对应，所述第四深度与所述第四预倾角对应。
在上述显示面板的制造方法中，所述第一分区的面积与所述第二分区的面积相等，所述第三分区的面积与所述第四分区的面积相等；所述第三预倾角小于所述第一预倾角和所述第二预倾角，所述第四预倾角小于所述第一预倾角和所述第二预倾角；所述步骤A包括以下步骤：a1、在所述第一分区、所述第二分区、所述第三分区和所述第四分区上设置像素电极，使得所述第一分区中的第一像素电极沟槽的第一深度、所述第二分区中的第二像素电极沟槽的第二深度、所述第三分区中的第三像素电极沟槽的第三深度和所述第四分区中的第四像素电极沟槽的第四深度均相等；a2、对所述第一分区、所述第二分区中的所述像素电极进行蚀刻，以使所述第一深度和所述第二深度均小于所述第三深度。
在上述显示面板的制造方法中，所述第一预倾角和所述第二预倾角均处于87度至89度的范围内，所述第三预倾角和所述第四预倾角均处于82度至84度的范围内。
在上述显示面板的制造方法中，所述第一预倾角和所述第二预倾角均为88度，所述第三预倾角和所述第四预倾角均为83度。
在上述显示面板的制造方法中，所述第二分区的面积小于所述第一分区的面积，所述第三分区的面积大于所述第二分区的面积，所述第四分区的面积大于所述第三分区的面积；所述第三预倾角小于所述第一预倾角、所述第二预倾角和所述第四预倾角；所述步骤A包括以下步骤：a3、在所述第一分区、所述第二分区、所述第三分区和所述第四分区上设置像素电极，使得所述第一分区中的第一像素电极沟槽的第一深度、所述第二分区中的第二像素电极沟槽的第二深度、所述第三分区中的第三像素电极沟槽的第三深度和所述第四分区中的第四像素电极沟槽的第四深度均相等；a4、对所述第一分区、所述第二分区和所述第四分区中的所述像素电极进行蚀刻，以使所述第一深度、所述第二深度和所述第四深度均小于所述第三深度。
在上述显示面板的制造方法中，所述第一预倾角、所述第二预倾角和所述第四预倾角均处于87度至89度的范围内，所述第三预倾角处于82度至84度的范围内。
在上述显示面板的制造方法中，所述第一预倾角、所述第二预倾角和所述第四预倾角均为88度，所述第三预倾角为83度。
 有益效果
相对现有技术，本发明有利于改善大尺寸显示面板在大视角的观察角度下的亮度泛白现象，从而提高大尺寸显示面板在大视角的观察角度下的显示质量。
 附图说明
图1为第一种传统的显示面板中的子像素的示意图；
图2为对图1所示的子像素进行伽马模拟所得出的模拟图；
图3为第二种传统的显示面板中的子像素的示意图；
图4为对图3所示的子像素进行伽马模拟所得出的模拟图；
图5为本发明的显示面板中的薄膜晶体管阵列基板的第一实施例的示意图；
图6为图5中A-A’截面的示意图；
图7为对图5和图6所示的子像素进行伽马模拟所得出的模拟图；
图8为将图7和图4关于上下视角的伽马曲线进行对比的示意图；
图9为将图7和图4关于左右视角的伽马曲线进行对比的示意图；
图10为本发明的显示面板中的薄膜晶体管阵列基板的第二实施例的示意图；
图11为对图10所示的子像素进行伽马模拟所得出的模拟图；
图12为本发明的显示面板的制造方法的流程图；
图13为图12中步骤1201的第一实施例的流程图；
图14为图12中步骤1201的第二实施例的流程图。
 本发明的最佳实施方式
本说明书所使用的词语“实施例”意指实例、示例或例证。此外，本说明书和所附权利要求中所使用的冠词“一”一般地可以被解释为“一个或多个”，除非另外指定或从上下文可以清楚确定单数形式。
本发明的显示面板可以是TFT-LCD（Thin Film Transistor Liquid Crystal Display，薄膜晶体管液晶显示面板）、OLED（Organic Light Emitting Diode，有机发光二极管显示面板）等。
参考图5和图6，图5为本发明的显示面板中的薄膜晶体管阵列基板的第一实施例的示意图，图6为图5中A-A’截面的示意图。
本实施例显示面板包括彩色滤光片基板、液晶层以及薄膜晶体管阵列基板，所述薄膜晶体管阵列基板与所述液晶层和所述彩色滤光片基板叠加组合为一体。其中，所述薄膜晶体管阵列基板包括至少两个像素单元504，至少两所述像素单元504以阵列（二维阵列）的形式排列，所述像素单元504包括第一分区5041、第二分区5042、第三分区5043和第四分区5044。所述薄膜晶体管阵列基板还包括至少一数据线502和至少一扫描线（栅极线）501，所述数据线502和所述扫描线501均与所述像素单元504的薄膜晶体管开关503电性连接。
所述第一分区5041与所述第二分区5042沿第一方向505排列，所述第三分区5043与所述第四分区5044沿所述第一方向505的反方向排列，所述第一分区5041与所述第四分区5044沿第二方向506排列，所述第二分区5042与所述第三分区5043沿所述第二方向506排列，所述第一方向505与所述第二方向506垂直。所述第一分区5041所对应的第一液晶分子具有第一预倾角（Pretilt Angle），所述第二分区5042所对应的第二液晶分子具有第二预倾角，所述第三分区5043所对应的第三液晶分子具有第三预倾角，所述第四分区5044所对应的第四液晶分子具有第四预倾角。
所述第一分区5041中的第一像素电极沟槽具有第一深度，所述第一深度与所述第一预倾角对应；所述第二分区5042中的第二像素电极沟槽具有第二深度h，所述第二深度h与所述第二预倾角对应；所述第三分区5043中的第三像素电极沟槽具有第三深度H，所述第三深度H与所述第三预倾角对应；所述第四分区5044中的第四像素电极沟槽具有第四深度，所述第四深度与所述第四预倾角对应。即，具有所述第一深度的所述第一像素电极沟槽用于使得所述第一液晶分子具有所述第一预倾角，具有所述第二深度h的所述第二像素电极沟槽用于使得所述第二液晶分子具有所述第二预倾角，具有所述第三深度H的所述第三像素电极沟槽用于使得所述第三液晶分子具有所述第三预倾角，具有所述第四深度的所述第四像素电极沟槽用于使得所述第四液晶分子具有所述第四预倾角。
在本实施例中，像素电极602的沟槽（所述第一像素电极沟槽、所述第二像素电极沟槽、所述第三像素电极沟槽和所述第四像素电极沟槽）的深度越大，则相对应的液晶分子的预倾角（所述第一预倾角、所述第二预倾角、所述第三预倾角和所述第四预倾角）越小。
在本实施例中，所述第一分区5041的面积与所述第二分区5042的面积相等，所述第三分区5043的面积与所述第四分区5044的面积相等。例如，所述第一分区5041的面积、所述第二分区5042的面积、所述第三分区5043的面积和所述第四分区5044的面积均相等。
所述第三预倾角小于所述第一预倾角和所述第二预倾角，所述第四预倾角小于所述第一预倾角和所述第二预倾角。例如，所述第一预倾角与所述第二预倾角相等，所述第三预倾角与所述第四预倾角相等，所述第三预倾角小于所述第一预倾角。
所述第一深度和所述第二深度h均小于所述第三深度H和所述第四深度。
所述第一预倾角和所述第二预倾角均处于86度至89度的范围内，所述第三预倾角和所述第四预倾角均处于81度至85度的范围内。
进一步地，所述第一预倾角和所述第二预倾角均处于87度至89度的范围内，所述第三预倾角和所述第四预倾角均处于82度至84度的范围内。
优选地，所述第一预倾角和所述第二预倾角均为88度，所述第三预倾角和所述第四预倾角均为83度。
上述技术方案有利于改善大尺寸显示面板在大视角的观察角度下的亮度泛白现象，从而提高大尺寸显示面板在大视角的观察角度下的显示质量。
针对本实施例使用液晶光学软件进行伽马曲线模拟得到的结果如图7所示。其中，曲线C3_0_60、C3_90_60、C3_180_60、C3_270_60分别表示在第一方位角0°、第二方位角90°、第三方位角180°和第四方位角270°所对应的方向下，本实施例的显示面板的60°视角的Gamma曲线，曲线C3_0_0表示在第一方位角0°所对应的方向下，本实施例的显示面板的0°视角的Gamma曲线。从图7可以明显看出下视角的Washout效果最好，上视角的Washout效果最差。
将本实施例的模拟图中上下视角的曲线与图4的上下视角的曲线进行对比，可以得到图8所示的对比结果，从图8可以看出，本实施例的显示面板的下视角无论在低灰阶（Gray Level）还是在高灰阶的都靠近标准的Gamma 2.2曲线，所以Washout效果更佳。
将本实施例的模拟图中左右视角的曲线与图4的左右视角的曲线进行对比，可以得到图9所示的对比结果，从图9可以看出，本实施例的显示面板的左右视角在低灰阶也比上述第二种传统的显示面板明显靠近Gamma 2.2曲线，因此Washout效果更佳。
综上，在本实施例中，通过改变预倾角（Pretilt Angle）所取得的效果不仅可以达到传统的改变面积的技术方案所取得的效果，而且能更明显的改善Washout效果。
参考图10，图10为本发明的显示面板中的薄膜晶体管阵列基板的第二实施例的示意图。本实施例与上述第一实施例相似，不同之处在于：
所述第二分区5042的面积小于所述第一分区5041的面积，所述第三分区5043的面积大于所述第二分区5042的面积，所述第四分区5044的面积大于所述第三分区5043的面积。例如，所述第一分区5041的面积占所述像素电极（包括所述第一像素电极、所述第二像素电极、所述第三像素电极和所述第四像素电极）602的面积的24%，所述第二分区5042的面积占所述像素电极602的面积的16%，所述第三像素电极的面积占所述像素电极602的面积的24%，所述第四像素电极的面积占所述像素电极602的面积的36%。
所述第三预倾角小于所述第一预倾角、所述第二预倾角和所述第四预倾角。例如，所述第一预倾角与所述第二预倾角以及所述第四预倾角均相等，所述第三预倾角小于所述第二预倾角。
所述第一深度、所述第二深度h和所述第四深度均小于所述第三深度H。
所述第一预倾角、所述第二预倾角和所述第四预倾角均处于86度至89度的范围内，所述第三预倾角处于81度至85度的范围内。
进一步地，所述第一预倾角、所述第二预倾角和所述第四预倾角均处于87度至89度的范围内，所述第三预倾角处于82度至84度的范围内。
优选地，所述第一预倾角、所述第二预倾角和所述第四预倾角均为88度，所述第三预倾角为83度。
上述技术方案有利于改善大尺寸显示面板在左右视角或下视角的观察角度下的显示质量。
针对本实施例使用液晶光学软件进行伽马曲线模拟得到的结果如图11所示。其中，曲线C4_0_60、C4_90_60、C4_180_60、C4_270_60分别表示在第一方位角0°、第二方位角90°、第三方位角180°和第四方位角270°所对应的方向下，本实施例的显示面板的60°视角的Gamma曲线，曲线C4_0_0表示在第一方位角0°所对应的方向下，本实施例的显示面板的0°视角的Gamma曲线。图11显示下视角Washout效果最好，上视角Washout效果最差，左右视角随着灰阶增加，Washout效果出现交替现象。
参考图12，图12为本发明的显示面板的制造方法的流程图。
本实施例的显示面板的制造方法包括以下步骤：
A（步骤1201）、在所述薄膜晶体管阵列基板的每一个所述像素单元504中设置所述第一分区5041、所述第二分区5042、所述第三分区5043和所述第四分区5044，使得所述第一分区5041中的第一像素电极沟槽具有第一深度，所述第二分区5042中的第二像素电极沟槽具有第二深度h，所述第三分区5043中的第三像素电极沟槽具有第三深度H，所述第四分区5044中的第四像素电极沟槽具有第四深度。
B（步骤1202）、将所述薄膜晶体管阵列基板、所述彩色滤光片基板叠加组合为一体。
C（步骤1203）、在所述薄膜晶体管阵列基板和所述彩色滤光片基板之间设置所述液晶层，以使所述第一分区5041处的第一液晶分子、所述第二分区5042处的第二液晶分子、所述第三分区5043处的第三液晶分子、所述第四分区5044处的第四液晶分子分别具有所述第一预倾角、所述第二预倾角、所述第三预倾角和所述第四预倾角。
其中，所述第一深度与所述第一预倾角对应，所述第二深度h与所述第二预倾角对应，所述第三深度H与所述第三预倾角对应，所述第四深度与所述第四预倾角对应。
具有所述第一深度的所述第一像素电极沟槽用于使得所述第一液晶分子具有所述第一预倾角，具有所述第二深度h的所述第二像素电极沟槽用于使得所述第二液晶分子具有所述第二预倾角，具有所述第三深度H的所述第三像素电极沟槽用于使得所述第三液晶分子具有所述第三预倾角，具有所述第四深度的所述第四像素电极沟槽用于使得所述第四液晶分子具有所述第四预倾角。
在本实施例中，像素电极602的沟槽（所述第一像素电极沟槽、所述第二像素电极沟槽、所述第三像素电极沟槽和所述第四像素电极沟槽）的深度越大，则相对应的液晶分子的预倾角（所述第一预倾角、所述第二预倾角、所述第三预倾角和所述第四预倾角）越小。
参考图13，图13为图12中步骤1201的第一实施例的流程图。
在本实施例中，所述第一分区5041的面积与所述第二分区5042的面积相等，所述第三分区5043的面积与所述第四分区5044的面积相等。
所述第三预倾角小于所述第一预倾角和所述第二预倾角，所述第四预倾角小于所述第一预倾角和所述第二预倾角。例如，所述第一预倾角与所述第二预倾角相等，所述第三预倾角与所述第四预倾角相等，所述第三预倾角小于所述第一预倾角。
所述步骤A（所述步骤1201）包括以下步骤：
a1（步骤12011）、在所述第一分区5041、所述第二分区5042、所述第三分区5043和所述第四分区5044上设置所述像素电极602，例如，通过溅射的方式在阵列基板601上形成所述像素电极602，使得所述第一分区5041中的第一像素电极沟槽的第一深度、所述第二分区5042中的第二像素电极沟槽的第二深度h、所述第三分区5043中的第三像素电极沟槽的所述第三深度H和所述第四分区5044中的第四像素电极沟槽的第四深度均相等。
a2（步骤12012）、对所述第一分区5041、所述第二分区5042中的所述像素电极602进行蚀刻，以使所述第一深度和所述第二深度h均小于所述第三深度H，例如，通过光罩制程去除所述第一分区5041和所述第二分区5042中的所述像素电极602的至少一部分。
在本实施例中，所述第一预倾角和所述第二预倾角均处于86度至89度的范围内。所述第三预倾角和所述第四预倾角均处于81度至85度的范围内。
进一步地，所述第一预倾角和所述第二预倾角均处于87度至89度的范围内，所述第三预倾角和所述第四预倾角均处于82度至84度的范围内。
优选地，所述第一预倾角和所述第二预倾角均为88度，所述第三预倾角和所述第四预倾角均为83度。
上述技术方案有利于改善大尺寸显示面板在大视角的观察角度下的亮度泛白现象，从而提高大尺寸显示面板在大视角的观察角度下的显示质量。
参考图14，图14为图12中步骤1201的第二实施例的流程图。本实施例与上述第一实施例相似，不同之处在于：
所述第二分区5042的面积小于所述第一分区5041的面积，所述第三分区5043的面积大于所述第二分区5042的面积，所述第四分区5044的面积大于所述第三分区5043的面积。例如，所述第一分区5041的面积占所述像素电极（包括所述第一像素电极、所述第二像素电极、所述第三像素电极和所述第四像素电极）602的面积的24%，所述第二分区5042的面积占所述像素电极602的面积的16%，所述第三像素电极的面积占所述像素电极602的面积的24%，所述第四像素电极的面积占所述像素电极602的面积的36%。
所述第三预倾角小于所述第一预倾角、所述第二预倾角和所述第四预倾角。例如，所述第一预倾角与所述第二预倾角以及所述第四预倾角均相等，所述第三预倾角小于所述第二预倾角。
所述步骤A（所述步骤1201）包括以下步骤：
a3（步骤12013）、在所述第一分区5041、所述第二分区5042、所述第三分区5043和所述第四分区5044上设置所述像素电极602，例如，通过溅射的方式在阵列基板601上形成所述像素电极602，使得所述第一分区5041中的第一像素电极沟槽的第一深度、所述第二分区5042中的第二像素电极沟槽的第二深度h、所述第三分区5043中的第三像素电极沟槽的所述第三深度H和所述第四分区5044中的第四像素电极沟槽的第四深度均相等。
a4（步骤12014）、对所述第一分区5041、所述第二分区5042和所述第四分区5044中的所述像素电极602进行蚀刻，以使所述第一深度、所述第二深度h和所述第四深度均小于所述第三深度H，例如，通过光罩制程去除所述第一分区5041、所述第二分区5042和所述第四分区5044中的所述像素电极602的至少一部分。
在本实施例中，所述第一预倾角、所述第二预倾角和所述第四预倾角均处于86度至89度的范围内。所述第三预倾角处于81度至85度的范围内。
进一步地，所述第一预倾角、所述第二预倾角和所述第四预倾角均处于87度至89度的范围内，所述第三预倾角处于82度至84度的范围内。
优选地，所述第一预倾角、所述第二预倾角和所述第四预倾角均为88度，所述第三预倾角为83度。
上述技术方案有利于改善大尺寸显示面板在左右视角或下视角的观察角度下的显示质量。
尽管已经相对于一个或多个实现方式示出并描述了本发明，但是本领域技术人员基于对本说明书和附图的阅读和理解将会想到等价变型和修改。本发明包括所有这样的修改和变型，并且仅由所附权利要求的范围限制。特别地关于由上述组件执行的各种功能，用于描述这样的组件的术语旨在对应于执行所述组件的指定功能（例如其在功能上是等价的）的任意组件（除非另外指示），即使在结构上与执行本文所示的本说明书的示范性实现方式中的功能的公开结构不等同。此外，尽管本说明书的特定特征已经相对于若干实现方式中的仅一个被公开，但是这种特征可以与如可以对给定或特定应用而言是期望和有利的其他实现方式的一个或多个其他特征组合。而且，就术语“包括”、“具有”、“含有”或其变形被用在具体实施方式或权利要求中而言，这样的术语旨在以与术语“包含”相似的方式包括。
综上所述，虽然本发明已以优选实施例揭露如上，但上述优选实施例并非用以限制本发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。

Claims (20)

  1. 一种显示面板，其中，所述显示面板包括：
    一彩色滤光片基板；
    一液晶层；以及
    一薄膜晶体管阵列基板，所述薄膜晶体管阵列基板与所述液晶层和所述彩色滤光片基板叠加组合为一体，其中，所述薄膜晶体管阵列基板包括：
    至少两个像素单元，至少两所述像素单元以阵列的形式排列，所述像素单元包括：
    一第一分区，所述第一分区所对应的第一液晶分子具有第一预倾角；
    一第二分区，所述第二分区所对应的第二液晶分子具有第二预倾角；
    一第三分区，所述第三分区所对应的第三液晶分子具有第三预倾角；以及
    一第四分区，所述第四分区所对应的第四液晶分子具有第四预倾角；
    其中，所述第一分区与所述第二分区沿第一方向排列，所述第三分区与所述第四分区沿所述第一方向的反方向排列，所述第一分区与所述第四分区沿第二方向排列，所述第二分区与所述第三分区沿所述第二方向排列，所述第一方向与所述第二方向垂直；
    所述第一分区中的第一像素电极沟槽具有第一深度，所述第一深度与所述第一预倾角对应；
    所述第二分区中的第二像素电极沟槽具有第二深度，所述第二深度与所述第二预倾角对应；
    所述第三分区中的第三像素电极沟槽具有第三深度，所述第三深度与所述第三预倾角对应；
    所述第四分区中的第四像素电极沟槽具有第四深度，所述第四深度与所述第四预倾角对应；
    所述薄膜晶体管阵列基板还包括至少一数据线和至少一扫描线，所述数据线和所述扫描线均与所述像素单元的薄膜晶体管开关电性连接。
  2. 根据权利要求1所述的显示面板，其中，所述第一分区的面积与所述第二分区的面积相等，所述第三分区的面积与所述第四分区的面积相等；
    所述第三预倾角小于所述第一预倾角和所述第二预倾角，所述第四预倾角小于所述第一预倾角和所述第二预倾角；
    所述第一预倾角处于86度至89度的范围内；
    所述第三预倾角处于81度至85度的范围内。
  3. 根据权利要求1所述的显示面板，其中，所述第二分区的面积小于所述第一分区的面积，所述第三分区的面积大于所述第二分区的面积，所述第四分区的面积大于所述第三分区的面积；
    所述第三预倾角均小于所述第一预倾角、所述第二预倾角和所述第四预倾角；
    所述第一预倾角处于86度至89度的范围内；
    所述第三预倾角处于81度至85度的范围内。
  4. 一种显示面板，其中，所述显示面板包括：
    一彩色滤光片基板；
    一液晶层；以及
    一薄膜晶体管阵列基板，所述薄膜晶体管阵列基板与所述液晶层和所述彩色滤光片基板叠加组合为一体，其中，所述薄膜晶体管阵列基板包括：
    至少两个像素单元，至少两所述像素单元以阵列的形式排列，所述像素单元包括：
    一第一分区，所述第一分区所对应的第一液晶分子具有第一预倾角；
    一第二分区，所述第二分区所对应的第二液晶分子具有第二预倾角；
    一第三分区，所述第三分区所对应的第三液晶分子具有第三预倾角；以及
    一第四分区，所述第四分区所对应的第四液晶分子具有第四预倾角；
    其中，所述第一分区与所述第二分区沿第一方向排列，所述第三分区与所述第四分区沿所述第一方向的反方向排列，所述第一分区与所述第四分区沿第二方向排列，所述第二分区与所述第三分区沿所述第二方向排列，所述第一方向与所述第二方向垂直。
  5. 根据权利要求4所述的显示面板，其中，所述第一分区中的第一像素电极沟槽具有第一深度，所述第一深度与所述第一预倾角对应；
    所述第二分区中的第二像素电极沟槽具有第二深度，所述第二深度与所述第二预倾角对应；
    所述第三分区中的第三像素电极沟槽具有第三深度，所述第三深度与所述第三预倾角对应；
    所述第四分区中的第四像素电极沟槽具有第四深度，所述第四深度与所述第四预倾角对应。
  6. 根据权利要求4所述的显示面板，其中，所述第一分区的面积与所述第二分区的面积相等，所述第三分区的面积与所述第四分区的面积相等；
    所述第三预倾角小于所述第一预倾角和所述第二预倾角，所述第四预倾角小于所述第一预倾角和所述第二预倾角。
  7. 根据权利要求6所述的显示面板，其中，所述第一预倾角处于86度至89度的范围内；
    所述第三预倾角处于81度至85度的范围内。
  8. 根据权利要求7所述的显示面板，其中，所述第一预倾角和所述第二预倾角均处于87度至89度的范围内，所述第三预倾角和所述第四预倾角均处于82度至84度的范围内。
  9. 根据权利要求8所述的显示面板，其中，所述第一预倾角和所述第二预倾角均为88度，所述第三预倾角和所述第四预倾角均为83度。
  10. 根据权利要求4所述的显示面板，其中，所述第二分区的面积小于所述第一分区的面积，所述第三分区的面积大于所述第二分区的面积，所述第四分区的面积大于所述第三分区的面积；
    所述第三预倾角小于所述第一预倾角、所述第二预倾角和所述第四预倾角。
  11. 根据权利要求10所述的显示面板，其中，所述第一预倾角处于86度至89度的范围内；
    所述第三预倾角处于81度至85度的范围内。
  12. 根据权利要求11所述的显示面板，其中，所述第一预倾角、所述第二预倾角和所述第四预倾角均处于87度至89度的范围内，所述第三预倾角处于82度至84度的范围内。
  13. 根据权利要求12所述的显示面板，其中，所述第一预倾角、所述第二预倾角和所述第四预倾角均为88度，所述第三预倾角为83度。
  14. 一种如权利要求4所述的显示面板的制造方法，其中，所述方法包括以下步骤：
    A、在所述薄膜晶体管阵列基板的每一个所述像素单元中设置所述第一分区、所述第二分区、所述第三分区和所述第四分区，使得所述第一分区中的第一像素电极沟槽具有第一深度，所述第二分区中的第二像素电极沟槽具有第二深度，所述第三分区中的第三像素电极沟槽具有第三深度，所述第四分区中的第四像素电极沟槽具有第四深度；
    B、将所述薄膜晶体管阵列基板、所述彩色滤光片基板叠加组合为一体；
    C、在所述薄膜晶体管阵列基板和所述彩色滤光片基板之间设置所述液晶层，以使所述第一分区处的第一液晶分子、所述第二分区处的第二液晶分子、所述第三分区处的第三液晶分子、所述第四分区处的第四液晶分子分别具有所述第一预倾角、所述第二预倾角、所述第三预倾角和所述第四预倾角；
    其中，所述第一深度与所述第一预倾角对应，所述第二深度与所述第二预倾角对应，所述第三深度与所述第三预倾角对应，所述第四深度与所述第四预倾角对应。
  15. 根据权利要求14所述的显示面板的制造方法，其中，所述第一分区的面积与所述第二分区的面积相等，所述第三分区的面积与所述第四分区的面积相等；
    所述第三预倾角小于所述第一预倾角和所述第二预倾角，所述第四预倾角小于所述第一预倾角和所述第二预倾角；
    所述步骤A包括以下步骤：
    a1、在所述第一分区、所述第二分区、所述第三分区和所述第四分区上设置像素电极，使得所述第一分区中的第一像素电极沟槽的第一深度、所述第二分区中的第二像素电极沟槽的第二深度、所述第三分区中的第三像素电极沟槽的第三深度和所述第四分区中的第四像素电极沟槽的第四深度均相等；
    a2、对所述第一分区、所述第二分区中的所述像素电极进行蚀刻，以使所述第一深度和所述第二深度均小于所述第三深度。
  16. 根据权利要求15所述的显示面板的制造方法，其中，所述第一预倾角和所述第二预倾角均处于87度至89度的范围内，所述第三预倾角和所述第四预倾角均处于82度至84度的范围内。
  17. 根据权利要求16所述的显示面板的制造方法，其中，所述第一预倾角和所述第二预倾角均为88度，所述第三预倾角和所述第四预倾角均为83度。
  18. 根据权利要求14所述的显示面板的制造方法，其中，所述第二分区的面积小于所述第一分区的面积，所述第三分区的面积大于所述第二分区的面积，所述第四分区的面积大于所述第三分区的面积；
    所述第三预倾角小于所述第一预倾角、所述第二预倾角和所述第四预倾角；
    所述步骤A包括以下步骤：
    a3、在所述第一分区、所述第二分区、所述第三分区和所述第四分区上设置像素电极，使得所述第一分区中的第一像素电极沟槽的第一深度、所述第二分区中的第二像素电极沟槽的第二深度、所述第三分区中的第三像素电极沟槽的第三深度和所述第四分区中的第四像素电极沟槽的第四深度均相等；
    a4、对所述第一分区、所述第二分区和所述第四分区中的所述像素电极进行蚀刻，以使所述第一深度、所述第二深度和所述第四深度均小于所述第三深度。
  19. 根据权利要求18所述的显示面板的制造方法，其中，所述第一预倾角、所述第二预倾角和所述第四预倾角均处于87度至89度的范围内，所述第三预倾角处于82度至84度的范围内。
  20. 根据权利要求19所述的显示面板的制造方法，其中，所述第一预倾角、所述第二预倾角和所述第四预倾角均为88度，所述第三预倾角为83度。
PCT/CN2015/073922 2015-03-04 2015-03-10 显示面板及其制造方法 Ceased WO2016138673A1 (zh)

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CN107490903A (zh) * 2017-09-04 2017-12-19 深圳市华星光电技术有限公司 一种显示面板及其制作方法、液晶显示器
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